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Calculati:
(2*1supra3+3*1supra2):7supra12-(2(3):1supra3-3:0,3+1,5:(1supra2)la puterea 2)la puterea 2


Răspuns :

(2*1/3+3*1/2):7/12-(2,(3):1/3-3:0,3+1,5:(1/2)²)²=
=(2/3+3/2):7/12-(21/9×3-3:3/10+15/10:1/4)²=
=13/6×12/7-(7/3×3-3×10/3+3/1×4)²=
=26/7-(7-10+12)²=
=26/7-9²=
=26/7-81=
=(26-567)/7=
=-541/7
87răspunsul este 34 supra1